What Actually Makes a Door Secure? Why We Build Our Access Control Around the Door Hardware

By Rachel Hargens

I spend a lot of my day building access control proposals for projects all over the country. And after sending out a lot of quotes, I started noticing a pattern in the questions coming back. The most common one goes something like this: “Rachel, why is your number higher than the other bid?”

It’s a great question, and I love answering it. Most of the time the difference comes down to the door itself. Two access control quotes can look nearly identical on paper and still put very different hardware on the door. Let’s walk through what we install, what we try to avoid and why it matters for your people and your property.

First, What Is a Request to Exit (REX)?

Every access-controlled door needs a way to tell the system, “Someone inside is leaving, and that’s okay.” That signal is called a Request to Exit, or REX. Without it, the system sees the door open with no badge scan and logs it as a forced door.

There are two common ways to send that signal:

• A motion sensor (PIR) mounted on the wall or ceiling above the door that detects someone walking toward it.
• An integrated REX where a sensor or microswitch is built directly into the lever set, lock or crash bar.

That one design choice affects your alarms, your audit trail and your day-to-day experience more than most people expect.

Why We Prefer Integrated REX

Fewer false alarms

A motion sensor reacts to movement near the door, not to someone actually opening it. It can trigger when a person walks past, pauses nearby or reaches for something on a shelf. It can also miss a fast exit. An integrated REX only activates when someone physically pushes the bar or turns the lever, so the signal matches what really happened.

Precise shunting

When the lever or bar moves, the integrated REX tells the system to “shunt,” or briefly ignore, the door forced open alarm for that normal exit. Because the signal comes from the hardware itself, the timing lines up with the person going through the door. Your security team gets fewer nuisance alerts, which means the alerts they do get deserve their attention.

Cleaner, more reliable logs

Accurate REX signals mean your access control system keeps an honest record of how each door is used. When you need to look back at an event, you want data you can trust.

Fail Safe vs. Fail Secure: What Happens When the Power Goes Out?

This is one of my favorite conversations because it surprises so many people. Every electrified lock is built to behave one of two ways when it loses power:

• Fail safe: the door unlocks. People can get in and out freely.
• Fail secure: the door stays locked from the outside to protect what’s inside, while people inside can still exit freely using the lever or crash bar.

That second part is important. Fail secure does not mean people get trapped. Free egress stays in place for life safety. The difference is whether the door also opens to anyone on the outside during an outage.

For the doors protecting your assets, like server rooms, inventory, offices and perimeter entries, we typically recommend fail secure hardware. There are also spots where the code or the use of the space calls for fail safe, and we’ll always tell you when that’s the right fit.

Why We Steer Away From Magnetic Locks

Magnetic locks (maglocks) are very strong while they have power. The challenge is everything around that “while.”

• They are fail safe by design. Lose power to the building and you lose power to the lock. At that point, the door is no longer secure.
• Installation matters a lot. A poorly aligned or poorly mounted maglock can be defeated with enough force or leverage, which takes away the protection you paid for.
• They usually depend on a motion sensor. That brings back the false alarm and missed exit issues we covered above.
• More parts to make them code-compliant. When a maglock is released by a sensor, building codes also call for a separate “Push to Exit” button near the door, release on fire alarm activation and release on power loss. Each added piece is another thing to install, maintain and troubleshoot.

Maglocks still have a place in some applications. For most doors we secure, though, an electrified lever or exit device with an integrated REX gives you better security with fewer moving parts.

Integrated REX Keeps Code Compliance Simple

Life safety comes first on every door we touch. With an integrated REX in the lever or crash bar, leaving the building works the way people already expect: push the bar or turn the handle and walk out. One natural motion releases the door and tells the system it was a valid exit. That makes it easier to support fire and life safety requirements for unhindered emergency egress.

So, Why Does Our Quote Look Different?

When you see a Visible Intellect access control proposal, you’re looking at a complete door, not just a reader on the wall. That usually includes:

• Electrified locking hardware matched to the door and how it’s used
• Integrated REX built into the lever or exit device
• Fail secure locking where you need to protect people and assets
• Clear guidance on where fail safe is required or makes sense
• A setup that supports clean alarms, accurate logs and code-compliant egress

A lower bid can sometimes mean a maglock and a motion sensor in place of integrated hardware. Both options will “work” on day one. The difference shows up during a power outage, a forced entry attempt or month three of nuisance alarms. We would much rather have that conversation up front.

Quick Answers

What is an integrated request to exit?

It’s a sensor or microswitch built into the lock, lever or crash bar that signals the access control system when someone exits, instead of a separate motion sensor mounted near the door.

What is the difference between fail safe and fail secure?

A fail safe lock unlocks when power is lost. A fail secure lock stays locked from the outside during an outage while still allowing free exit from the inside.

Are magnetic locks secure?

They hold strongly while powered, but they unlock when power is lost and depend heavily on proper installation. That’s why we recommend electrified locking hardware with integrated REX for most secured doors.

Why do motion sensor REX devices cause false alarms?

They respond to movement near the door rather than someone physically opening it, so people walking by can trigger them and fast exits can be missed.

Let’s Talk About Your Doors

If you’re comparing access control quotes or planning a new project, I’d love to help you look at it door by door. Our team designs and installs access control systems across Los Angeles and Southern California and beyond, and we’re always happy to explain the why behind every recommendation. Reach out to the Visible Intellect team to get started.